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Questions and Answers
What is the primary factor that determines the classification of a solution as dilute or concentrated?
What happens to the concentration of a solution when more solvent is added to it?
What is the maximum amount of solute that can dissolve in a specific amount of solvent at a specific temperature?
What is the range of diameters of particles in a colloid?
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What is the term used to describe the distribution of particles in a colloid?
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What is the characteristic of particles in a colloid that allows them to remain suspended in the solution?
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What is an example of a concentrated solution?
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What is the term used to describe the mixture of solute particles that are larger than those in a true solution but smaller than those that can be seen by the naked eye?
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What is the factor that affects the solubility of a substance?
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What happens to the particles in a colloid over time?
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Study Notes
Solutions
- Classified as dilute or concentrated based on the relative amount of solute present
- Dilute solutions contain a relatively small amount of solute
- Concentrated solutions contain a relatively large amount of solute
Changing Concentration
- Adding more solvent to a solution dilutes it and decreases its concentration
Solubility
- Maximum amount of solute that dissolves in a specific amount of solvent at a specific temperature
- Depends on the solvent used, as well as temperature and pressure
Colloids
- Heterogeneous mixture with solute particles larger than those in a true solution
- Particle size ranges between 1 and 1000 nanometers in diameter
- Particles remain evenly distributed throughout the solution and do not settle to the bottom of the container
- Particles are big enough to scatter a beam of light, known as the Tyndall effect
- The Tyndall effect is a characteristic that distinguishes colloids from solutions
Suspensions
- Heterogeneous mixture with solid particles spread throughout a liquid without dissolving
- Particles are big enough (greater than 1000 nanometers) to be seen with the naked eye
- Particles are undissolved in a given medium
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Description
Determine the classification of solutions as dilute or concentrated based on the amount of solute present. Learn how addition of solvent affects the solution.
